发明名称 Blade attachment for motor grader
摘要 A wing blade attachment for a motor grader used to maintain unimproved rural roads. The wing blade attachment mounts to a trailing end of a main motor grader blade and swings up and down into ground scraping contact in order to create water drainage passages through the gravel windrows along the road edges or to smooth roadways at intersections, bridges and driveways. The windrows are placed by road maintenance crews to stockpile materials for roadway use. A linear actuator such as a hydraulic ram allows the grader operator to remotely and selectively swing the wing blade up and down and cut passages.
申请公布号 US2011311309(A1) 申请公布日期 2011.12.22
申请号 US20100803205 申请日期 2010.06.22
申请人 HARTWICH STANLEY K.;SMITH MARK E. 发明人 HARTWICH STANLEY K.;SMITH MARK E.
分类号 E01C19/42;E01C19/22 主分类号 E01C19/42
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